How can I test whether a variable holds a lambda?

Question

Is there a way to test whether a variable holds a lambda? The context is I\'d like to check a type in a unit test:

self.assertEquals(lambda, type(my         


        

Answer 1

Use the types module:

from types import *

assert isinstance(lambda m: m, LambdaType)

According to the docs, It is safe to use from types import *.

ATTENTION to the reader: this is wrong! types.LambdaType is types.FunctionType, so the above exrpession will match both Lambdas and Functions, alike.